Technical Papers
Feb 15, 2013

Sailing Solar-Cell Raft Project and Weather and Marine Conditions in Low-Latitude Pacific Ocean

Publication: Journal of Energy Engineering
Volume 139, Issue 1

Abstract

Development of a huge wind-sailing solar cell raft (SCR) with dimensions of 5×5km is proposed, which can generate electricity comparable to a 1,000-MW nuclear power plant in low-latitude Pacific Ocean. Solar energy of 8k·Wh/m2/day or more is targeted because the SCR navigates in fine weather using weather satellites. The generated electricity will be transported by battery tankers loaded with a tremendous number of high-energy-density batteries. Studies based on available data indicate that there are vast open seas in the tropical Pacific Ocean, where the maximum solar energy attains 7k·Wh/m2/day annually on average and conditions of winds, waves, and sea currents are favorable for the solar energy system to operate. Three major technologies for breakthrough to realize this system are discussed from their future perspectives.

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Acknowledgments

Chairman M. Kanegawa, Secretary T. Hayashi, and many others in the Members Association of Registered Engineers in Chuo University, Tokyo, Japan are gratefully appreciated for their encouragement and help in doing preliminary activities toward the project.

References

Endo, H., Kan, M., Ohmatsu, S., Yamakawa, K., Kan, S., and Watanabe, K. (1982). “Feasibility study on a project for hydrogen production by solar energy at sea and for its transport (1st Report: Study on the structural and hydro-dynamical properties of the raft).”, Ship Building Research Institute, Tokyo (in Japanese).
Escher, W. J. D., Foster, R. W., and Veziroglu, T. N. (1977). “Direct solar energy conversion at sea (DSECAS): Characteristic of baseline concept.” Proc., Miami Int. Conf. on Alternative Energy Resources, 3, 1115–1133.
Japan Meterological Agency (JMA). (2003). “Marine climate in North Hemisphere Pacific Ocean.” Japan Meteorological Agency, 〈http://www.data.kishou.go.jp/db/toukatsu/stat/index.html〉 (Oct. 1, 2011).
Kokusho, T. (2010). “A challenge to paradigm shift in energy—Pacific Ocean Solar Cell Raft Project.” Consultant, 247, 70–73 (in Japanese).
National Aeronautics and Space Administration (NASA). (2008). “22-year monthly & annual average (July 1983–June 2005)- NASA surface meteorology and solar energy (SSE)- Release 6.0 data set.” 〈http://eosweb.larc.nasa.gov/sse/:〉 (Apr. 1, 2011).
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New Energy Development Organization (NEDO). (2009). Road map for R & D of solar ray power generation (PV2030+), New Energy Development Agency, Tokyo (in Japanese).
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Niki, S., et al. (2011). “Development of high-efficiency CIGS solar cells and submodules for mass-production.” J. Jpn. Solar Energy Soc., 37(1), 21–29 (in Japanese).
Ohta, T., and Shimamura, A. (1979). “Feasibility study on the PORSHE (1) Plan of ocean raft system for hydrogen economy.” Proc., Condensed Papers, 2nd Miami Int. Conf. on Alternative Energy Sources, 170–171.
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Information & Authors

Information

Published In

Go to Journal of Energy Engineering
Journal of Energy Engineering
Volume 139Issue 1March 2013
Pages: 2 - 7

History

Received: Dec 14, 2011
Accepted: Jun 5, 2012
Published online: Feb 15, 2013
Published in print: Mar 1, 2013

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Authors

Affiliations

Takaji Kokusho, Ph.D. [email protected]
M.ASCE
Professor, Dept. of Civil and Environment Engineering, Chuo Univ., Tokyo, Japan (corresponding author). E-mail: [email protected]
Eiji Emoto
Meteorologist, Director, Emoto Engineering Office, Tokyo, Japan.
Tatsuya Kato
Ph.D. Student, Graduate School, Chuo Univ., Tokyo, Japan.

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